Sieve cleaner



March 23 1926.

J. MRAZ ET AL SIEVE CLEANER 2.Sheets-S heet 1 Filed July 11. 1924 March 23 1926. 1,578,153

J; MRAZ ET AL S'IEVE CLEANER Filed July 11, 1924 r 2 Sheets-Sheet 2 Patented Mar. 23, 1925.

TJNETE STATES JOHN MRAZ AND JULIUS STEDEL, OF BASi-IAWV, ALBERTA, CANADA.

srnvn CLEANER.

Application filed July 11, 1924. Serial No. 725,448.

To all 1.0 7mm it may concern Be it known that we, JOHN MnAz and Jones STEDEL, subjects of the King of Great Britain, residing at Bashaw, in the Province of lberta, Dominion of Canada, have invented certain new and useful Improvements in. a Sieve Cleaner, of which the following is a specification.

This invention relates to a cleaning apparatus or device designed to clean the sieve particularly of a grain separating machine and to maintain such sieve clean during operation of the machine so that the sieve meshes cannot become clogged and the grain caused to follow the straw and become lost or wasted.

Another object is to provide a construction which particularly coacts as an atta ch ment with a well-known make of grain separator so that it may be readily applied thereto and supported without alteration of its parts,

A further object is to provide a novel form of reciprocatory means movable over and against one surface, preferably the under surface, of the upper sieve of a pair.

Still further, it is aimed to provide a novel knock-down construction utilizing fingers in connection with a connecting bar and a reciprocatory rod, together with novel securing means common to all of said parts.

The more specific objects will be partly pointed out and otherwise become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

Figure 1 is a plan view of the improvements in connection with fragments of a grain separator, the latter being shown in dotted lines;

Figure 2 is a fragmentary inverted plan view of the cleaner, particularly showing the connection of the fingers, connecting bar and reciprocatory rod;

Figure 3 is a section taken on the line 3-3 of Figure 1 with coacting parts'of a grain separator shown in dotted lines;

Figure 4 is a side view of the means for operating the reciprocatory rod; 7

Figure 5 is a front View of one of the bearings for the reciprocatory rod;

Figure 6 is arear end view of the device, partly broken away and partly in sec tion;

and eproximal ends of the tines. 11.

Figure 7 is a detail perspective view suggesting the knockdown construction of the device as regards the lingers and connecting bar; and

Figure 8 is a section view taken on the line 88 of Figure 1. I

Referring specifically to the drawings wherein like reference characters designate like or similar parts, the sides of a grain separator are conventionally suggested at A having hand-holes a therethrough to facilitate access to the mechanism of the sap arator. A sieve means for that separator 'is shown as upper and lower sieves at B and B in Figure 3. These parts are conventional and are found in at least one type of grain separator. They are shown as my particular construction coacts therewith although the principles thereof are not so limited. i

A skeleton sieve cleaner shown at 10. This body may havea plurality of fingers or tines 11, usually three as shown, removably fitted in mortises 12 of a connecting bar 13. 13 are usually made of wood while the remaining parts hereinafter described are usuallymade of metal. The bar 13 is disposed on and rigidly and removably secured to and par ly in countersunk engagement at 13 with a reciprocatory rod 1%. Hook bolts 15 may be removahly passed body is generally Tines 11 and bar through openings in the connecting bar 13 The hooks 16 of said bolts clamp around the rod 14: and their distal ends enter notches 17 of the connecting bar so that the hooks cannot turn and so that they cannot if they should loosen slip transversely off of the rod. The upper ends of the bolts 15 are screw threaded and receive nuts 18 thereon, preferably over washers 19. Those bolts are thus common fastening means for all of these parts and exceedingly rigidly connect them together as well as permitting disassembly for storage or transportation, in that knocked-down, they will occupy minimum space. These parts may be suitably braced, as by the system of braces 20 bolted to'the parts of the frame 10 at 21. Said fingers 11 as shown in Figure 3 are in wiping contact with the sieve B as shown in Figure 3, preferably at the under or lower surface.

Supplementing the rod l t in supporting the frame 10 at metallic wear alates 10 is a rest rod 22 which is removalily disposed and oppositely screwtl ended into brac ets 22 screwed or otherwise fastened to the sides A.

Bearings or plates 23, one of which is detailed in Figure 5 are belted or otherwise fastened against the e'terior cit the walls A as at 9A- and the rod ll is jonrnalled therein for sliding or reciprocatory movement. Said rod passes through the handholes a.

As one means of reciprocating rod 14:, a lever 25 is pivoted to one oi the sides A a, by a vertical pin 26 secured to lugs 27 bolted at 28 to said side. The Sillfil lever adjacent one end has an elongated slot 29 through which rod 1%: passes and the rod has nuts or ZLlJUtHTQDtS 3 5) screw threaded thereon to complete the connection be e the lever. Tris lever 1" any desired manner. 31 has a vertical pin it in openings 3-3 oi said lever i is secured to the link by a Pntal pi"; or pivot 85. This forms a so 1 nniversal connection. Bar 34: on. e ned 'ain separator,

to an eperatin part ot the 1 rod or the b tor instance the straw-sh crank shaft arin.

In operation, the lever 25 1s oscillated or rocked back and forth during operation of the grain separator to which it 1S attached in the manner previously suggested. Motion of the said lever 25 reciprocates rod 1% and accordingly the frame 10, moving the lingers 1 ever the adjacent surface of the sieve B and thereby keeping the sieves clean by preventing clogging of the ineshes of the sieves. The lingers l1 dislodge any straw or other particles which may occupy the meshes. l hen each sieve is thus kept clean, considerable grain is saved since with a clogged sieve, the grain would be carried over with the straw and be wasted or lost.

The parts all being detachable from the separator and from each other as previously suggested, may be readily knocked down or disassembled so that they will occupy minimum space for storage or shipment.

W hat is claimed is:-

In combination with a separator or the like provided with hand holes through its frame and a sieve within the trains; plates covering said holes and detachably connected to the frame a reciprocatory rod supported by said plates. a cleaner for the sieve, said cleaner being located within the frame and detachably secured to the rod, a rest rod for the cleaner within and fastened to the frame in spaced relation to the reciprocatory rod, and means to operate the reciprocatory rod.

In testimony whereof we have aflixed our signatures.

- .T. MRAZ.

JULIUS STEDEL. 

